At the spring AGM of 2013, AUNBT members voted to increase the mil rate, so dues are now 1.2% of salary. (For thirty years dues had been 1%, the lowest in the province.)
The university payroll department deducts these union dues at source every pay period and remits them to AUNBT. For the contributing member they are fully tax deductible.
Note, however, no one is a member of AUNBT just because of paying dues. The only way to become a member is to fill in the membership form found elsewhere on this site. Having done so, one can attend meetings, stand for the executive, vote, ratify collective agreements, etc. Membership in AUNBT is free (since you’re already paying dues).